Judaism has no central authority and is associated with the Jewish people and their history of dispersion and oppression. Jews experience their relationship with God through studying the Torah, which contains the Five Books of Moses and guides Jews to obey the one God. The Holocaust was the murder of 6 million European Jews by Nazi Germany and a tragic event in Jewish history. Jews celebrate holidays like the Sabbath and High Holy Days and study scripture to remember God in all aspects of life. There are different Jewish sects that have different interpretations of applying Torah to everyday life. Jerusalem was the site of the Temple and place where God's presence was strongest.